University of Calgary
Univ. Of Calgary: Punctuation Rules Exclamation Marks
Helpful resource detailing the uses and misuses of the exclamation mark in English punctuation. Includes examples and a quiz following all three end mark sections.
University of Calgary
Univ. Of Calgary: Periods, Question Marks, Exclamations
This excellent resource provides information about rules, uses, and misuses of these three end marks (period, question mark, exclamation mark). Also, includes examples and short quizzes at the end of each section.